Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather Threat from the Central Plains to the Great Lakes

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, and thunderstorms to the Marianas Islands into Wednesday. Tropical Storm conditions are likely over Guam. Severe thunderstorms and heavy rain are likely across the Upper Mississippi Valley and Great Lakes region with potential for large to very large hail, damaging wind, and tornadoes through Tuesday. Read More >

Current conditions at

Hayward, Hayward Air Terminal (KHWD)

Lat: 37.66083°NLon: 122.11833°WElev: 46.0ft.

Clear

63°F

17°C

Humidity 55%
Wind Speed W 14 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 13 Apr 04:20 PM PDT
Extended Forecast for

San Lorenzo CA

  • Tonight

    Tonight: Increasing clouds, with a low around 49. West wind 5 to 9 mph becoming light west southwest  after midnight.

    Low: 49 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Partly sunny, then gradually becoming sunny, with a high near 64. Light west wind increasing to 5 to 10 mph in the morning.

    High: 64 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 48. West southwest wind 5 to 10 mph.

    Low: 48 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 66. West wind 5 to 11 mph.

    High: 66 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 50. West wind 6 to 11 mph, with gusts as high as 18 mph.

    Low: 50 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 48.

    Low: 48 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 49. West wind 5 to 9 mph becoming light west southwest after midnight.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 64. Light west wind increasing to 5 to 10 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 48. West southwest wind 5 to 10 mph.
Wednesday
Partly sunny, with a high near 66. West wind 5 to 11 mph.
Wednesday Night
Partly cloudy, with a low around 50. West wind 6 to 11 mph, with gusts as high as 18 mph.
Thursday
Sunny, with a high near 69.
Thursday Night
Clear, with a low around 48.
Friday
Sunny, with a high near 74.
Friday Night
Partly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 74.
Saturday Night
Mostly cloudy, with a low around 50.
Sunday
A slight chance of showers. Partly sunny, with a high near 67.
Sunday Night
A slight chance of showers. Mostly cloudy, with a low around 49.
Monday
A slight chance of showers. Mostly sunny, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
San Lorenzo CA
 37.68°N 122.13°W (Elev. 112 ft)
1:26 pm PDT Apr 13, 2026
4pm PDT Apr 13, 2026-6pm PDT Apr 20, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database